3-ELE-02

Outcomes

• Pupils can predict whether the charges will attract or repel
• Pupils can describe dangers and uses of electrostatic charge

Specification References

• 2.20 recall that insulating materials can be charged by friction
• 2.21 explain that positive and negative electrostatic charges are produced on materials by the loss and gain of electrons
• 2.22 recall that there are forces of attraction between unlike charges and forces of repulsion between like charges
• 2.23 explain electrostatic phenomena in terms of the movement of electrons
• 2.24 recall the potential dangers of electrostatic charges, e.g. when fuelling aircraft and tankers
• 2.25 recall some uses of electrostatic charges, e.g. in photocopiers and inkjet printers

Starter

• Revise previos lesson (basics of electrostatics)

Main Body of Lesson

• Van De Graff demos; hair standing, flying pie dish (+ rice crispies), fluorescent tube, Barbie head, candle, Bunsen lighting, discharging
• Uses and dangers of static charge; photocopier, ink jet printer, car spraying, precipitator, refuelling aircraft, paper mill)

Plenary

• Application of electrostatic concepts to real life uses and dangers

Additional Information

Resources Required

• VDG and accesories
• Wimshurst machine

Safety/Hazards

• Beware pacemakes, heart conditions, cochlea implants etc.
• No "human capacitors"